The present disclosure provides a robot and speech interaction recognition rate improvement circuit and method thereof. In the circuit, the main controller transmits a pre-recorded servo sound file to the first decoder in response to detecting the robot being in a motion state; the first decoder decodes the servo sound file to obtain a first sound analog signal of a servo sound; the analog-to-digital converter converts the first sound analog signal of the servo sound into a first sound digital signal, and converts a second sound analog signal collected by the microphone into a second sound digital signal; and the main controller further performs a suppression process on the servo sound in the second sound digital signal based on the first sound digital signal and the second sound digital signal. As a result, the influence of the sound of the servo of the robot is effectively reduced.
Legal claims defining the scope of protection, as filed with the USPTO.
1. A circuit for improving speech interaction recognition rate of a robot electrically connected to the circuit, comprising a first decoder, an analog-to-digital converter, a microphone, and a main controller, wherein: the main controller is configured to transmit a pre-recorded servo sound file to the first decoder in response to detecting the robot being in a motion state; the first decoder is configured to decode the servo sound the to obtain a first sound analog signal of a servo sound; and the analog-to-digital converter is configured to convert the first sound analog signal of the servo sound into a first sound digital signal, and convert a second sound analog signal collected by the microphone into a second sound digital signal; wherein, the main controller is further configured to perform a suppression process on the servo sound in the second sound digital signal based on the first sound digital signal and the second sound digital signal.
2. The circuit of claim 1 , further comprising a second decoder and a speaker, wherein; the second decoder is configured to decode a system sound transmitted by the main controller to obtain a third sound analog signal of the system sound, transmit the third sound analog signal to the speaker, and transmit the third sound analog signal to the analog-to-digital converter; and the main controller is further configured to receive the third sound analog signal, and perform a suppression process on the system sound in the second sound analog signal.
3. The circuit of claim 2 , further comprising an amplifier for amplifying the third sound analog signal output by the second decoder, wherein the amplifier outputs the second sound analog signal to drive the speaker.
4. A computer-implemented method for improving speech interaction recognition rate of a robot, comprising executing on a processor steps of: obtaining a pre-recorded servo sound file of a servo of the robot to decode into a first sound analog signal and convert the first sound analog signal into a first sound digital signal, in response to detecting the robot being in a motion state; converting a second sound analog signal collected by a microphone into a second sound digital signal; and performing a suppression process on a servo sound in the second sound digital signal based on the first sound digital signal and the second sound digital signal.
5. The method of claim 4 , further comprising: obtaining a third sound analog signal of a system sound in response to a speaker of the robot outputting the system sound; and converting the third sound analog signal into a third sound digital signal and performing a suppression process on the system sound in the second sound digital signal based on the third sound digital signal.
6. The method of claim 5 , wherein in the step of obtaining the third sound analog signal of the system sound, the third sound analog signal is an analog signal of the system sound amplified by an amplifier, and the third sound analog signal is output directly through the speaker of the robot.
7. A robot comprising: a device for improving speech interaction recognition rate of the robot; and a servo; wherein the device comprises: a first sound signal obtaining unit configured to obtain a pre-recorded servo sound file of the of the robot to decode into a first sound analog signal and convert the first sound analog signal into a first sound digital signal, in response to detecting the robot being in a motion state; a second sound signal obtaining unit configured to convert a second sound analog signal collected by a microphone into a second sound digital signal; and a first suppression unit configured to perform a suppression process on a servo sound in the second sound digital signal based on the first sound digital signal and the second sound digital signal.
8. The robot of claim 7 , wherein the robot further comprises a speaker, and the device further comprising: a third sound signal obtaining unit configured to obtain a third sound analog signal of a system sound in response to the speaker outputting the system sound; and a second suppression unit configured to convert the third sound analog signal into a third sound digital signal and perform a suppression process on the system sound in the second sound digital signal based on the third sound digital signal.
9. The robot of claim 8 , wherein the robot further comprises an amplifier, and in the third sound signal obtaining unit, the third sound analog signal is an analog signal of the system sound amplified by the amplifier, and the third sound analog signal is output directly through the speaker of the robot.
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October 18, 2018
August 18, 2020
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